Potassium chlorate, kclo3, decomposes when heated to produce potassium chloride and oxygen gas. if 2.50 grams of kclo3 were heated in a test tube, how many grams of oxygen gas should be given off?

Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.